java - Idea doesn't recognise persistence.xml -

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i faced weird behavior: ide can't recognize xml document if named "persistence.xml" , features syntax coloring & code completion doesn't work file.

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but when rename it, idea start support xml document.

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so, can reason of behavior?

(debian, idea 14)

updated persistence.xml:

    <?xml version="1.0" encoding="utf-8" standalone="yes"?> <persistence xmlns="http://xmlns.jcp.org/xml/ns/persistence" xmlns:xsi="http://www.w3.org/2001/xmlschema-instance" version="2.1" xsi:schemalocation="http://xmlns.jcp.org/xml/ns/persistence http://xmlns.jcp.org/xml/ns/persistence/persistence_2_1.xsd">    <persistence-unit name="ex01" transaction-type="jta">      <jta-data-source>java:global/jdbc/ch08</jta-data-source>     <properties>       <property name="javax.persistence.schema-generation.database.action" value="create"/>       <property name="javax.persistence.schema-generation-target" value="database-and-scripts"/>        <property name="javax.persistence.schema-generation.scripts.action" value="create"/>       <property name="javax.persistence.schema-generation.scripts.create-target" value="create.sql"/>        <property name="javax.persistence.sql-load-script-source" value="sql/initdata.sql"/>        <property name="javax.persistence.jdbc.driver"  value="org.apache.derby.jdbc.embeddeddriver"/>       <property name="javax.persistence.jdbc.url"     value="jdbc:derby:memory:07db;create=true"/>          <property name="eclipselink.logging.level" value="off"/>     </properties>   </persistence-unit> </persistence>


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